Crank BB interface hardware - problem
I've installed a ritchey compact crank on a new ultegra BB. They are both ISIS. I attached the crankset then placed on a washer and tightend the crank bolt. That's it. It keeps loosening and creaking.
In addition to the hardware mentioned above, the crankset came with a doughnut shaped threaded ring with the holes in it, a plastic washer and a metal washer. I'm assuming I need to add these to the crank to prevent the creaking and loosening. I can add the doughnut thing, but what about the additional washers? What is the order of assembly?
I am new to ISIS. Thanks for your help!